.\" $NetBSD: mppb.4,v 1.8 2014/03/18 18:20:39 riastradh Exp $
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.\" Copyright (c) 2011 The NetBSD Foundation, Inc.
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.\" This code is derived from software contributed to The NetBSD Foundation
.\" by Radoslaw Kujawa.
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.Dd September 16, 2012
.Dt MPPB 4 amiga
.Os
.Sh NAME
.Nm mppb
.Nd Prometheus PCI bridge driver
.Sh SYNOPSIS
.Cd "mppb* at zbus0"
.Cd "pci* at mppb?"
.Sh DESCRIPTION
The
.Nm
driver provides support for the PCI bus present on Prometheus Zorro III to PCI
bridge card.
.Sh HARDWARE
The
.Nm
driver supports the following hardware:
.Bl -tag -width "PROMETHEUS" -offset indent
.It Em PROMETHEUS
Matay Prometheus. Manufacturer 44359, product 1.
.El
.Sh SEE ALSO
.Xr pci 4
.Sh HISTORY
The
.Nm
device first appeared in
.Nx 6.0 .
.Sh AUTHORS
.An -nosplit
The
.Nm
driver was written by
.An Radoslaw Kujawa Aq Mt radoslaw.kujawa@gmail.com .
.Sh BUGS
The hardware does not support DMA to host memory.
.Pp
The Prometheus does not support repeating of PCI transactions, instead if the
PCI card demands a retry of transaction, it returns value 0xFFFFFFFF.
This is currently not handled by the
.Nm
driver and will confuse some PCI card drivers.